How to remove lens distortion from input images in Deepstream?

[yuweiw]

Could you add the patch in the open source code and try to see if the performance is improved in your env?

--- sources\gst-plugins\gst-nvdewarper\nvdewarper.cpp
***************
*** 41,46 ****
--- 41,47 ----
  #include "cudaEGL.h"
  #endif
  
+ #define USE_CUDA_STREAM
  
  /* Dewarper #defines */
  #ifndef   M_PI
***************
*** 245,250 ****
--- 246,252 ----
    /* Test measurement with 10 iterations */
  #ifdef USE_CUDA_STREAM
    warper.warp(nvdewarper->stream, srcTex, dstBuffer, cuDstRowBytes);
+   cudaStreamSynchronize(nvdewarper->stream);
  #else
    warper.warp(0, srcTex, dstBuffer, cuDstRowBytes);
    cudaErr = cudaDeviceSynchronize();